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KV-8AD11/8AD14
|
RM-792/793
SECTION 5
CIRCUIT ADJUSTMENTS
5-1.
A BORAD ADJUSTMENTS
5-2.
D BORAD ADJUSTMENTS
ກກກ
УВ 651
@ vR 801
О Боаға
-сотропеп! side-
Ye
SW 802
CHAR POSI
@ув 802
(о)
|
|
VL 801
A board
-component side-
Q vn 205
© vn 206 [PICTURE LEVEL]
RF AGC ADJUSTMENT
(VR 111
PICTURE LEVEL ADJUSTMENT
(VR 206
1. Receive an off-air signal.
1. Receive a color bay signal.
2. Adjust VR111 so that snow noise and cross-
2. Set the picture and brightness VR at center click
modulation just disappear the picture.
position.
3. Connect at oscilloscope to the red output on the C
board.
CHANNEL DISPLAY POSITION ADJUSTMENT
4. Adjust VR 206 so that the balance of the black
(VR 101)
and white level becomes 49 Vp-p.
1. Adjust VR101 so that CHANNEL display position
comes to the position shown in the figure.
49 Vp-p
SUB-BRIGHTNESS ADJUSTMENT
(VR 205
1. Receive a color bar signal.
2. Set the picture to MIN
and brightness
at the
center click position.
3. Adjust VR 305 so that the blue section becomes
1. Receive а broadcast signal.
2. Adjust УВ, 112 so that the sound become optimum
with minimum distortion.
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